Rollercoasters have GPE and KE depending on where the rollercoaster is at each point. I'm going to tell you in this rollercoaster when it had GPE and/or KE. As the rollercoaster started, the energy it had was GPE because it wasn't moving and was low to the ground. When it began, it didn't have KE because it wasn't moving yet. At point 1, the rollercoaster was at it's maximum amount of GPE because it was at it's maximum height. The rollercoaster then had the least KE because it was moving slower. When the rollercoaster arrived at point 2, it had the least amount of GPE because it was lower to the ground. Also, it had more KE because it was moving faster from point 1 to point 2 because of the hill. At point 6, the rollercoaster had more GPE than KE because it was higher off the ground. It didn't have more KE because it was gradually decreasing speed. You can't have more GPE than KE in this rollercoaster. They have to switch up and down depending on the height or speed.